so, could the new science, tonight, about getting the songs out of our head really work? abc's linzie janis, tonight, with a study that's music to our ears. ♪ call me maybe and all the other boys ♪ ♪ that try to chase me but here's my number ♪ ♪ so, call me maybe >> reporter: "call me maybe," maybe one of the catchiest songs ever recorded. once you get it into your head, you can't get it out. even justin bieber was hooked, inviting carly rae jepsen on stage. and she told "world news." >> i looked at the audience. and they were singing it. i was like, okay. that's insane. >> reporter: researchers have long known there is a science to how a melody can get stuck in our heads. a phenomenon known as an earworm. even mark twain once writing about an annoying jingling rhyme he couldn't shake. the formula, simple lyrics in short intervals. and sweet success. ♪ sweet caroline >> reporter: even neil diamond once saying he couldn't get his own song out of his head. taking cold showers and listening to other people's music. nothing worked, he said. tonight, researchers sa